Dunstand quickly lets fly with one of his daggers, striking the plant creature in the center of it's mass (5 damage, Immune to Sneak Attacks). Drogo lands as quickly as possible and begins his transformation back to halfling form.
Teleri's arrow misses the creature, but not by much. Her arrows skitters off into the thick underbrush. With a cry, Calenthang charges the creature as projectiles from his compansion whiz by his head. Sword already drawn, it comes down across his foe with deadly ferocity, stopping it in it's tracks (16 damage). The tendrils of the plant creature make a grab for the elven fighter, but he is able to beat them off with his shield.
Wanting to be close to the action in case Calenthang needed his help quickly, Ayden charged the creature himself, swinging with his hammer, a whistle of air in response, as he misses. Sielwoodan looses and arrow over his companion's heads, (4 damage) and then another as he realizes it affected the plant monster. (6 damage)
Recognizing the creature for what it is, Broddy knows what can affect the creature and what cannot. He casts his spell. Sarlis looses an arrow of his own at the creature, but like Teleri, misses his mark.
Initiative:
Dunstand - 20
Drogo - 17
Teleri - 15
Calenthang - 14
Shambling Mound - 12
Ayden - 10
Sielwoodan - 9
Broddy - 7
Sarlis - 6